What does conflagrate mean?
To conflagrate is to burst into flame and burn fiercely, whether of a fire taking hold on its own or of someone deliberately setting something alight. The word functions as a verb, with an intransitive sense ('the building conflagrated') and a transitive sense ('the raiders conflagrated the town'), and it derives directly from the same Latin root as the far more familiar noun 'conflagration', meaning a great destructive fire. In modern English it is genuinely rare: most writers reach for everyday alternatives such as ignite, kindle, or catch fire, and 'conflagrate' survives chiefly in literary, historical, or deliberately elevated contexts describing devastation by fire. Its value lies less in daily usefulness than in precision and pedigree — it lets a writer name the act of fierce burning itself, rather than merely the blaze it produces.
verbTo catch fire and burn suddenly or fiercely; to set something ablaze. It is the verbal counterpart of the noun 'conflagration', denoting a large destructive fire.
- (intransitive) To catch fire and burn fiercely or destructively.
- (transitive) To set something on fire; to cause something to burn fiercely.
"Dry summer winds allowed the abandoned warehouse to conflagrate within minutes."
"Sparks from the faulty wiring caused the entire attic to conflagrate overnight."
"The invaders conflagrated the granaries, leaving the village without winter stores."
Every 'conflagration' you've ever read about started with something learning to conflagrate — this rare verb is where the blaze begins.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of conflagrate
'Conflagrate' comes from the Latin verb conflagrare, formed from com- ('altogether' or intensively) and flagrare ('to burn'), the same root that gives English 'flame'-related words such as 'flammable' and, more distantly, 'flagrant'. The word entered English in the early 17th century, at a time when scholarly Latinisms were flowing freely into the language, alongside its sibling noun 'conflagration'. Both terms preserve the Latin sense of burning intensely or completely.
Related word forms
How conflagrate is actually used
This is a rare, formal, and somewhat technical word; in everyday English speakers overwhelmingly use 'catch fire', 'ignite', or 'set alight' instead, reserving the familiar noun 'conflagration' for large destructive fires. When 'conflagrate' does appear, it is most often in literary or historical prose describing destruction by fire.
Easily confused with conflagrate
'Conflagrate' is the verb meaning to catch fire or set alight, while 'conflagration' is the noun naming the resulting large, destructive fire.
'Deflagrate' means to burn rapidly with intense heat (as certain chemicals do), whereas 'conflagrate' refers to ordinary fierce burning or setting aflame.